CN106995256A - A kind of handling process of starch wastewater - Google Patents
A kind of handling process of starch wastewater Download PDFInfo
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- CN106995256A CN106995256A CN201610049917.XA CN201610049917A CN106995256A CN 106995256 A CN106995256 A CN 106995256A CN 201610049917 A CN201610049917 A CN 201610049917A CN 106995256 A CN106995256 A CN 106995256A
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- water outlet
- waste water
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- starch wastewater
- biochemical denitrification
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
Abstract
The present invention provides a kind of handling process of starch wastewater, including two kinds of processing modes.The first is that starch wastewater passes through " preliminary sedimentation tank+coagulative precipitation tank+hydrolysis acidification regulating reservoir+anaerobic reactor+biochemical denitrification pond+second pond ", wherein laying pipeline connection between preliminary sedimentation tank water exit position and biochemical denitrification pond.Second is that waste water passes through " preliminary sedimentation tank+hydrolysis acidification regulating reservoir+coagulative precipitation tank+anaerobic reactor+biochemical denitrification pond+second pond ", wherein laying pipeline connection between hydrolysis acidification regulating reservoir water exit position and biochemical denitrification pond.Two ways using coagulative precipitation tank be placed in pretreatment stage and biochemical denitrification pond introduce starch wastewater treatment during node waste water as biochemical denitrification pond supplementary carbon source.Enterprise can select suitable processing mode according to itself waste water quality and capital construction condition.The starch wastewater treatment technique that the present invention is provided, improves system denitrogenation dephosphorizing efficiency, and operating cost economical rationality realizes the recycling of waste water.
Description
Technical field
The invention belongs to Treatment of Industrial Water and waste water reclaiming technical field.Specifically related to a kind of handling process of starch wastewater
With the method for recycling.
Background technology
China is Starch Production and consumption big country, since reform and opening-up, China's starch total output by 1978 280,000
Ton develops into 23,050,000 tons in 2013, and yield is only second to the U.S., occupies second place of the world.With continuous adjustment production pattern,
The level of production of the import of advanced technology, China's starch and its process deeply industry is obviously improved.But undeniable to be, starch
Waste water is still one of waste water of pollution most serious in food industry.The middle-size and small-size starch number of the enterprise of China is numerous, comprehensively utilizes ability
Relatively low, starch recoveries in its production technology are relatively low, loss rate of macaroni is high, ton product water consume and the steam consumption are but higher by greatly 100,000
Tonne starch factory, wastewater discharge is big.Containing organic matters such as much starch, protein, carbohydrate, fat in the waste water of discharge,
Belong to high-concentration acidic wastewater organic wastewater (CODcrConcentration is up to 30,000 more than mg/L).Contain more dissolved organic matter in waste water,
Increase the intractability of waste water.If the technique without efficient stable is handled it, enterprise periphery and regional environment will be caused
Rapid deterioration.
Generally use both at home and abroad at present using anaerobic-aerobic and combine biological treatment as main processing mode processing starch wastewater.This
COD can effectively be removed in practical engineering application by planting technique, but system anti impulsion load is poor, it is difficult to ensure that pollutant is stable
Efficiently remove.Current domestic all starch enterprises have built up waste water disposal facility, but in Facilities Construction, scale is less to form sediment
Powder enterprise, fund input is small, causes treatment facility scarce capacity, and the processing of many wastewater treatment engineerings and clean-up effect are undesirable.
Larger starch enterprise, though pollution reducing facility is complete, compliance rate is also higher, exist engineering construction investment it is big,
The problems such as running expense is high.With the raising of energy-saving and emission-reduction requirement, starch processing enterprise will face higher discharge standard, reinforcing
Denitrogenation dephosphorizing turns into inevitable requirement.Raising system turns into TN and TP removal effect to be needed badly in transformation sewage treatment process
The problem of solution.
In the technology for improving system nitric efficiency, the selection of biochemical denitrification pond internal carbon source and add as key link.Mesh
Preceding to handle waste water based on anaerobic-aerobic combination biological treatment compared with multiple enterprises, water outlet COD can meet emission request,
But the problem of often there is nitrogen and exceeded phosphorus.It is primarily due to that anaerobic reactor water outlet C/N is relatively low, carbon source deficiency result in
Follow-up aerobic-anaerobic technique denitrogenation dephosphorizing efficiency is not good enough, it is therefore desirable to adds supplementary carbon source into aerobic-anaerobic workshop section.Conventional carbon
Source includes methanol, ethanol etc., and such carbon source can be quickly utilized by the microorganisms, but be limited by cost, transport and security problems,
It is difficult to promote the use of in sewage treatment plant.The many researchers of recent domestic find cheap carbon source by number of ways.Such as beer
Wine waste water, cotton etc..This kind of carbon source can meet efficient denitrification rate, can also reduce cost of sewage disposal, while can also realize useless
The recycling of thing.
In processing starch wastewater dephosphorization technique, bioanalysis phosphor-removing effect is limited, generally in waste water treatment process end, profit
Use chemical method reinforced phosphor-removing.But because the suitable use condition of flocculant is more harsh, some flocculants are limited in end process
In use or add further processing cost.For example Wu Hao exists《Research of the different flocculants to starch wastewater phosphor-removing effect》
Described in, in the removal effect of total phosphorus during the different flocculants investigated are to starch wastewater biochemical treatment water outlet, iron chloride is removed
Phosphorus best results, but due to after processing water outlet pH in acidity, do not reach discharging standards requirement, need and calcium chloride be combined and be made
With.
Organic concentration in starch wastewater is high, small toxicity, is the perfect medium for cultivating microorganism.Both at home and abroad using all kinds of
Starch wastewater, such as potato starch wastewater, corn starch wastewater, sago starch waste water cultivate a variety of functional microorganisms, such as micro-
Biological insecticides Dipel (Bacillus thuringiensis), bio-feritlizer Paenibacillus polymyxa (Paenibacillus
) and microbial flocculant etc. polymyxa.Organic matter in these research explanation starch wastewaters is easy to be utilized by microorganism.
The present invention in view of the high efficiency of coagulation for phosphorus removal, and starch wastewater high biochemical, propose a kind of strengthening treatment process.
So far, through domestic and foreign literature and patent retrieval, do not inquire and starch wastewater is handled with handling process proposed by the present invention
Report.The proposition of the present invention provides new foundation for the processing of starch wastewater.
The content of the invention
The brief overview on the present invention is given below, to provide the basic comprehension on certain aspects of the invention.
It should be appreciated that this general introduction is not the exhaustive general introduction on the present invention.It is not intended to determine that the present invention's is crucial or again
Part is wanted, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form, is made with this
For the preamble in greater detail discussed later.
The present invention provides a kind of handling process of starch wastewater, it is characterised in that：It includes following two modes：
(1) high-concentration waste water is first passed through the protein that preliminary sedimentation tank removes partial contamination thing and reclaims precipitation by pretreatment stage, its
Secondary entrance coagulative precipitation tank carries out coagulating sedimentation and goes dephosphorization and suspension, furthermore enters " hydrolysis acidification regulating reservoir+anaerobic reactor ",
Then anaerobic reactor water outlet enters the progress biochemical denitrification processing of biochemical denitrification pond together with the preliminary sedimentation tank water outlet of part, last biochemical de-
The water outlet of nitrogen pond enters second pond, water outlet is stably reached discharge standard.
(2) high-concentration waste water is first passed through " preliminary sedimentation tank+hydrolysis acidification regulating reservoir " removal partial contamination thing, returned by pretreatment stage
The protein and regulation pH of precipitation are received, carrying out coagulating sedimentation subsequently into coagulative precipitation tank goes dephosphorization and suspension, subsequently enters
Anaerobic reactor, then anaerobic reactor water outlet enters biochemical denitrification with part preliminary sedimentation tank water outlet or together with hydrolysis acidification pool water outlet
Pond carries out biochemical denitrification processing, and the water outlet of last biochemical denitrification pond enters second pond, water outlet is stably reached discharge standard.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Aforesaid way (1) or mode (2) are not exist together
Reason mode, enterprise can voluntarily select according to itself condition of water quality, capital construction condition, when there is multiple preliminary sedimentation tanks, can will it is therein just
Heavy pond transform coagulative precipitation tank as, is now adapted to selection mode (1), and selection mode (2) is adapted to when biochemical denitrification pool volume is smaller.
Enterprise can select suitable mode according to condition of water quality, capital construction condition.Have in investigation Some Enterprises have two and more than
Preliminary sedimentation tank, if land used is nervous as, last preliminary sedimentation tank can be transform to coagulative precipitation tank, now suitable selection mode (1)；
Node waste water, which is introduced, as carbon source will certainly increase waste water water, and the increase of water will shorten waterpower of the waste water in biochemical denitrification pond
Residence time.If biochemical denitrification pool volume is smaller, it is too short to be easily caused the residence time, causes denitrification effect poor.In view of water
Solution acidifying regulating reservoir water outlet biodegradability is better than preliminary sedimentation tank water outlet, and waste water introduction volume is small, if therefore enterprise's biochemical denitrification pool volume compared with
It is small, then suitably carry out wastewater treatment from mode (2).
A kind of above-mentioned starch wastewater, it is characterised in that high COD, the high P acid waste water produced in starch process.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Described in aforesaid way (1) or mode (2) just
Heavy pond is used for the protein for removing the partial contamination thing in waste water and reclaiming precipitation.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Mixed described in aforesaid way (1) or mode (2)
Solidifying sedimentation basin, for going dephosphorization and suspension, the hydrolysis acidification regulating reservoir, its water outlet pH is faintly acid, neutral or weak base
Property.
Coagulative precipitation tank is set to be used to go dephosphorization and suspension purpose, primarily to solving the problems, such as three below.One be because
Carry out water pollutant especially SS excessive concentrations for starch wastewater and fluctuation range is larger, cause anaerobic reactor to stablize and transport
OK, therefore oil removal is removed；Two be the easy fouling of anaerobic reactor pipeline, blocks pipeline.It is primarily due to protein in waste water
Content is high, and protein produces the phosphate radical generation ammonium magnesium phosphate in a large amount of inorganic ammonias and waste water after anaerobic reactor hydrolytic deaminzation base
Crystal salt, causes line clogging.Therefore dephosphorization is gone.Three be that Phosphorus From Wastewater content is high, and biological treatment dephosphorizing rate is not good enough.Therefore
Go dephosphorization.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Coagulative precipitation tank described in aforesaid way (1),
From appropriate acid waste water and the flocculant of efficient dephosphorization.
Advantage from the flocculant for treating waste water of appropriate acid waste water is that the pH of raw wastewater belongs to acid waste water 3~5,
From the flocculant of appropriate acid water quality, without carrying out water quality adjustment to waste water.The removal to most of phosphorus and suspension is completed,
The problem of easy fouling of anaerobic reactor fluctuation of service, pipeline and exceeded water outlet phosphorus can be solved in traditional starch handling process.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Coagulative precipitation tank described in aforesaid way (2),
From suitable neutral waste water and the flocculant of efficient dephosphorization.
Advantage from the flocculant for treating waste water of suitable neutral waste water is that the requirement of anaerobic reactor inlet flow-patterm is neutral or weak
Under conditions of acid-base property.Using waste water after hydrolysis acidification regulating reservoir, water outlet need to adjust the characteristics of pH is to neutral or weak acid alkalescence,
Coagulating sedimentation facility is set after hydrolysis acidification regulating reservoir.The flocculant of the suitable neutral water quality of addition, without additional adjustment pH or
PH fine adjustments only need to be carried out after coagulative precipitation tank.Solve anaerobic reactor fluctuation of service in traditional starch handling process, pipe
The problem of easy fouling in road and exceeded water outlet phosphorus.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Described in aforesaid way (1) or mode (2)
Biochemical denitrification pond, for comprising aerobic and anoxia functions, the reaction tank with denitrification functions.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Preliminary sedimentation tank water outlet described in aforesaid way (1),
By being laid between preliminary sedimentation tank delivery port and biochemical denitrification pond water inlet, exported in the pipeline for being provided with flow control valve
Waste water, the biochemical denitrification described in proportional mode of entrance (1) is distinguished with the anaerobic reactor water outlet described in mode (1)
Pond.
A kind of handling process of above-mentioned starch wastewater, it is characterised in that：Hydrolysis acidification regulation described in aforesaid way (2)
Pond water outlet, by being laid between hydrolysis acidification regulating reservoir delivery port and biochemical denitrification pond water inlet, is provided with Flow-rate adjustment
The waste water exported in the pipeline of valve, proportional mode of entrance (2) is distinguished with the anaerobic reactor water outlet described in mode (2)
Described biochemical denitrification pond.
In the present invention process biochemical treatment stage using preliminary sedimentation tank water outlet as biochemical denitrification pond supplementary carbon source.Advantage is (1)
Improve waste water C/N.Solve the problem of denitrifying carbon source is not enough in existing starch wastewater treatment technique；(2) supplement part phosphorus member
Element.Solve after pretreatment Coagulation Method high efficiency dephosphorization, phosphorus easily occurs after Anaerobic Treatment again in waste water in biochemical denitrification pond not enough
The problem of, and the phosphorus content introduced is few, can meet growth but not the influence standard water discharge of microorganism；(3) managed as original place
Waste water in system, will not make the microbiologic population in biochemical denitrification pond occur larger change, therefore microorganism can be in the short period
Endoadaptation, the domestication time is short, and utilization of carbon source rate is high；(4) load of pretreatment and Anaerobic Treatment is lowered into, promotes follow-up structure
Build the stable operation of thing；(5) recycling of waste water is realized.Shortcoming is：While introducing COD and P, it can also draw
Enter part nitrogen substance.But it is due to that waste water introducing small amount can meet the carbon requirement in biochemical denitrification pond, introducing nitrogen content is few,
And subsequently have biochemical denitrification pond that it is further processed, therefore do not interfere with standard water discharge.
In the present invention process biochemical treatment stage using hydrolysis acidification pool water outlet as biochemical denitrification pond supplementary carbon source.Except with
Outside above-mentioned preliminary sedimentation tank water outlet is as biochemical denitrification pond supplementary carbon source advantage, hydrolysis acidification pool goes out the molecular weight of Organic substance in water than just
The molecular weight of organic matter is small in sinking pool effluent, is more easy to be utilized by microorganism.Reason is the larger molecular organicses warp in preliminary sedimentation tank water outlet
Cross after hydrolysis acidification, macromolecular substances are degraded and generated in the presence of hydrolase and a large amount of hydrolysis, non-hydrolytic microorganism
It is capable of the small-molecule substance of penetration cell wall film.Therefore the biodegradability of hydrolysis acidification pool water outlet is better than preliminary sedimentation tank water outlet, Ke Yigeng
Efficiently utilized by denitrifying microorganism.
The present invention mainly overcome in existing starch wastewater treatment technology the change of waste water water water quality and quantity greatly, anaerobic reactor transports
Unstable, the easy fouling of anaerobic reactor pipeline of row and aerobic-anaerobic section carbon source are not enough, cause effluent quality to be difficult to ensure that row up to standard
A kind of the problem of putting, it is proposed that combined treatment process of high-efficient denitrification and dephosphorization, and technique has investment cost small, Operation and Maintenance letter
It is single, the advantage that water outlet stably reaching standard and waste water can be made to get utilization.
Brief description of the drawings
Fig. 1 is the process chart of the embodiment of the present invention.
Embodiment
The flow of solid line connection as shown in Figure 1, a kind of processing mode of starch wastewater：Waste water enters preliminary sedimentation tank, removes
Partial contamination thing and the recovery for carrying out protein.The removal to most of phosphorus and suspension is completed into coagulative precipitation tank：It need not change
Become the condition of water quality such as raw water temperature and pH, add a certain amount of acid flocculant, rotating speed is 200r/min, and the sedimentation time is 40min.
It is using hydrolysis acidification regulating reservoir that the macromolecular in coagulative precipitation tank water outlet based on aromatic hydrocarbons, alkane alkene and heterocyclic material is organic
Thing, is degraded to low molecular organic acidses and the alcohols such as valeric acid, the furfuryl alcohol of being capable of penetration cell wall film.When hydrolysis acidification regulating reservoir is stopped
Between be 8h.PH is adjusted to after neutrality enter anaerobic reactor by water outlet using lime supernatant, in anaerobic reactor further
Macromolecular substances are changed into small-molecule substance, is finally changed into methane, carbon dioxide and thoroughly removes, the COD of waste water is reduced,
The pollutant such as partially protein, fat is by heterotroph ammonification simultaneously.Anaerobic reactor water outlet enters biochemical denitrification pond, now just heavy
Pond water outlet also enters biochemical denitrification pond by a certain percentage, is used as the supplementary carbon source of microorganism, it is to avoid because anaerobic reactor water outlet carbon
Nitrogen is than biochemical system imbalance caused by too low.In biochemical denitrification pond, aerobic section heterotroph amonifying bacteria is by residual protein
The pollutants such as matter, fat carry out ammonification, and the nitrification of autotrophic bacterium willIt is oxidized toAnoxic section denitrifying bacteria willIt is reduced to N2.Waste water enters second pond after the water outlet of biochemical denitrification pond, completes mud-water separation, concentration and returnedactivatedsludge
Effect, make water outlet qualified discharge.
The flow that solid line as shown in Figure 1 is combined with dotted line, the processing mode of another starch wastewater.Waste water enters just heavy
Enter hydrolysis acidification regulating reservoir behind pond, complete after the regulation to water quality and quantity, regulation hydrolysis acidification regulating reservoir water outlet pH to neutrality
Waste water enters coagulative precipitation tank, adds a certain amount of neutral flocculant.Coagulative precipitation tank water outlet enters anaerobic reactor.Anaerobic reaction
Device water outlet enters biochemical denitrification pond, and now preliminary sedimentation tank water outlet or hydrolysis acidification pool water outlet also enter biochemical denitrification pond by a certain percentage,
It is used as the supplementary carbon source of microorganism.Except coagulative precipitation tank position be placed in after hydrolysis acidification regulating reservoir and supplementary carbon source may be selected just
Beyond two kinds of heavy water outlet or hydrolysis acidification regulating reservoir water outlet, each structures function and embodiment and the above-mentioned reality being connected with solid line
Apply identical described by mode.
Application example：Five effects for illustrating the present invention, but scope of the presently claimed invention not office are enumerated below
It is limited to this.
Application example 1：One enterprise's corn starch wastewater water, CODcrFor 9787mg/L, TN is 622mg/L, and TP is 93mg/L,
SS is 2610mg/L.Precipitate COD after 1hcr, TN, TP, SS clearance be respectively 39.09%, 30.14%, 17.87%,
88.03%.Obtain sediment 2.30kg/m3.Experiment waste water enterprise day processing hc effluent 1700m used3, recyclable dry
3.91t/d.Sediment is based on protein.The mass fraction of crude protein and true albumen is respectively：42.25%, 40.40%, it is good
Good animal feed additive.
Application example 2：It is flocculant of 40% ferric chloride solution as acid coagulative precipitation tank by the use of commercial available quality fraction.In raw water temperature
32 DEG C of degree is with conditions of pH=3.6, and dosage is 0.40g/L, rotating speed 250r/min stirring 1min, rotating speed 40r/min stirrings
20min, precipitates 40min.Total phosphorus content is down to 10.6mg/L by 112mg/L in starch wastewater, and clearance is 90.5%, SS
Content is down to 11.4mg/L by 220mg/L, and clearance is 94.8%.Understand from chlorination ferric flocculant need not change raw water pH,
The condition of water quality such as temperature, go dephosphorization and suspension effect significantly, cost is low；And commercially available ferric chloride in aqueous solution, is saved
The problems such as enterprise sets up medicine dissolving tank, reduces capital cost.
Application example 3：The flocculant of neutral coagulative precipitation tank is used as by the use of aluminum sulfate.Under conditions of 32 DEG C of wastewater temperature and pH=7.0,
Dosage is 0.40g/L, rotating speed 250r/min stirring 1min, rotating speed 40r/min stirring 20min, precipitates 40min.Starch gives up
Total phosphorus content is down to 11.5mg/L by 104mg/L in water, and clearance is that 88.9%, SS contents are down to 2.1mg/L by 232mg/L,
Clearance is 99.1%.
Application example 4：Cornstarch enterprise Sewage Disposal vertical sedimentation tank water outlet and EGSB anaerobic reactor water outlets are gathered, is pressed
The ratio of water 1,/25 one denitrification reactor of introducing, C/N=4.8,30 DEG C of composite waste temperature, pH=6.9, the residence time is 6h,
MLSS=5248mg/L, nitrate nitrogen content is down to 3.9mg/L by 99.8mg/L, and clearance is 96.09%.
Application example 5：Cornstarch enterprise Sewage Disposal hydrolysis acidification regulating reservoir water outlet and EGSB anaerobic reactor water outlets are gathered,
A denitrification reactor is introduced in the ratio of water 3/100, C/N=3,30 DEG C of composite waste temperature, pH=6.9, the residence time is
6h, MLSS=4892mg/L, nitrate nitrogen content are down to 3.0mg/L by 100.2mg/L, and clearance is 97.01%.
Finally it should be noted that：Although be described in detail above the present invention and its advantage it should be appreciated that without departing from
Various changes can be carried out in the case of the spirit and scope of the present invention being defined by the claims appended hereto, substitutes and converts.
Moreover, the scope of the present invention is not limited only to process described by specification, equipment, means, the specific embodiment of method and steps.
One of ordinary skilled in the art will readily appreciate that from the disclosure, according to the present invention can use execution with herein
The essentially identical function of described corresponding embodiment or acquisition are to be developed result, the existing and future essentially identical with it
Process, equipment, means, method or step.Therefore, appended claim is directed in the range of them including such
Process, equipment, means, method or step.
Claims (10)
1. a kind of handling process of starch wastewater, it is characterised in that：It includes following two modes：
(1) high-concentration waste water is first passed through the protein that preliminary sedimentation tank removes partial contamination thing and reclaims precipitation by pretreatment stage, and next enters
Enter coagulative precipitation tank progress coagulating sedimentation and go dephosphorization and suspension, furthermore enter " hydrolysis acidification regulating reservoir+anaerobic reactor ", so
Anaerobic reactor water outlet enters the progress biochemical denitrification processing of biochemical denitrification pond, last biochemical denitrification together with the preliminary sedimentation tank water outlet of part afterwards
Pond water outlet enters second pond, water outlet is stably reached discharge standard.
(2) high-concentration waste water is first passed through " preliminary sedimentation tank+hydrolysis acidification regulating reservoir " removal partial contamination thing, reclaims heavy by pretreatment stage
The protein and regulation pH in shallow lake, carry out coagulating sedimentation subsequently into coagulative precipitation tank and go dephosphorization and suspension, subsequently enter anaerobism
Reactor, then anaerobic reactor water outlet enters the progress biochemical denitrification processing of biochemical denitrification pond together with partial hydrolysis acidification pool water outlet,
Last biochemical denitrification pond water outlet enters second pond, water outlet is stably reached discharge standard.
2. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：Aforesaid way (1) and mode (2)
For starch wastewater Different treatments, enterprise can voluntarily select according to condition of water quality, capital construction condition, when there is multiple preliminary sedimentation tanks,
Preliminary sedimentation tank therein can be transform as coagulative precipitation tank, now be adapted to selection mode (1), fitted when biochemical denitrification pool volume is smaller
Close selection mode (2).
3. starch wastewater according to claim 1, it is characterised in that the high COD that is produced in starch process, high P acidity
Waste water.
4. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：Aforesaid way (1) or mode (2)
Described in preliminary sedimentation tank be used to remove the partial contamination thing in waste water and reclaim the protein of precipitation.
5. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：Aforesaid way (1) or mode (2)
Described in coagulative precipitation tank, for going dephosphorization and suspension, the hydrolysis acidification regulating reservoir, its water outlet pH be faintly acid, in
Property or alkalescent.
6. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：It is mixed described in aforesaid way (1)
Solidifying sedimentation basin, from appropriate acid waste water and the flocculant of efficient dephosphorization.
7. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：It is mixed described in aforesaid way (2)
Solidifying sedimentation basin, from suitable neutral waste water and the flocculant of efficient dephosphorization.
8. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：Aforesaid way (1) or mode (2)
Described in biochemical denitrification pond, for comprising aerobic and anoxia functions, the reaction tank with denitrification functions.
9. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：It is first described in aforesaid way (1)
Sinking pool effluent, by being laid between preliminary sedimentation tank delivery port and biochemical denitrification pond water inlet, is provided with the pipe of flow control valve
The waste water exported in road, distinguishes proportional mode of entrance (1) described with the anaerobic reactor water outlet described in mode (1)
Biochemical denitrification pond.
10. a kind of starch wastewater treatment technique according to claim 1, it is characterised in that：Water described in aforesaid way (2)
Solution acidifying regulating reservoir water outlet, by being laid between hydrolysis acidification regulating reservoir delivery port and biochemical denitrification pond water inlet, is installed
The waste water exported in the pipeline for having flow control valve, with the proportional entrance side of anaerobic reactor water outlet described in mode (2)
Biochemical denitrification pond described in formula (2).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569824A (en) * | 2018-04-28 | 2018-09-25 | 陕西昕宇表面工程有限公司 | A kind of starch gourmet powder waste water biochemistry intensive treatment system and technique |
| CN108585194A (en) * | 2018-07-05 | 2018-09-28 | 江苏安德信超导加速器科技有限公司 | A kind of potato starch wastewater system for anaerobic treatment |
| CN108773984A (en) * | 2018-07-05 | 2018-11-09 | 江苏安德信超导加速器科技有限公司 | A kind of potato starch wastewater treatment process |
| CN114538695A (en) * | 2020-11-24 | 2022-05-27 | 山东福洋生物科技股份有限公司 | Method for treating modified starch industrial wastewater by using microorganisms |
| CN115490331A (en) * | 2022-10-24 | 2022-12-20 | 中国电建集团华东勘测设计研究院有限公司 | Urban polluted rainwater SBBR treatment device and treatment method for introducing domestic sewage |
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| CN108569824A (en) * | 2018-04-28 | 2018-09-25 | 陕西昕宇表面工程有限公司 | A kind of starch gourmet powder waste water biochemistry intensive treatment system and technique |
| CN108585194A (en) * | 2018-07-05 | 2018-09-28 | 江苏安德信超导加速器科技有限公司 | A kind of potato starch wastewater system for anaerobic treatment |
| CN108773984A (en) * | 2018-07-05 | 2018-11-09 | 江苏安德信超导加速器科技有限公司 | A kind of potato starch wastewater treatment process |
| CN114538695A (en) * | 2020-11-24 | 2022-05-27 | 山东福洋生物科技股份有限公司 | Method for treating modified starch industrial wastewater by using microorganisms |
| CN115490331A (en) * | 2022-10-24 | 2022-12-20 | 中国电建集团华东勘测设计研究院有限公司 | Urban polluted rainwater SBBR treatment device and treatment method for introducing domestic sewage |
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